8×

The notation 8× uses the multiplication sign “×” to indicate a factor of eight. In arithmetic, 8×n equals 8n, and expressions such as 8×3 = 24 are read “eight times three.” The symbol is widely used in science, engineering, and everyday language to communicate scaling or repetition.

Eight times can be described with several terms: eightfold (an adjective or noun), octuple (less common as a noun), or the verb octuple to mean to increase by eight times. The prefix oct- comes from Latin octo, meaning eight.

Common uses include magnification in optics and imaging, such as an 8× scope, lens, or microscope where the object appears eight times larger than unaided. In performance or speed metrics, statements like “8× faster” express eightfold improvement or throughput relative to a baseline.

In typography and digital interfaces, 8× may appear as a label or setting, often using the times symbol rather than a plain x. In casual writing, 8x is frequent; 8× is preferred in formal contexts to avoid confusion with the variable x.